I accidentally, without thinking, took an antacid this afternoon about an hour after taking my afternoon dose of 15 mg short acting Adderall. Then my heart started to race. I couldn't figure out why it would come on all of a sudden like that. I went online to check the side effects/interactions and read that antacids can cause serious side effects. Then I decided to take a beta blocker (atenolol) to slow my heart down. I checked effects/interactions again and learned that beta blockers can cause severe side effects. What to do? I remembered I had some herbal products for the heart so I took them thinking because they are natural they won't harm me. I took Hawthorn for heart support and Collius Forskolii for blood pressure regulaton. I couldn't belive I could be so dense. Both of those supplements are nothing less than medicine in herbal form. So now I'm thinking....I'm gonna die. That made my heart pound faster. It's been about 1 hour since my "episode" and I am still alive.Any advice?